Multi-focus image fusion via online convolutional sparse coding

Efficiently and perfectly eliminate out-of-focus pixels is still a persistent challenge for multi-focus image fusion. Previous approaches tend to focus on high quality fusion results while ignoring running cost. Online Convolutional Sparse Coding (OCSC) is an online version of Convolutional Sparse C...

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Bibliographic Details
Published in:Multimedia tools and applications Vol. 83; no. 6; pp. 17327 - 17356
Main Authors: Zhang, Chengfang, Zhang, Ziyou, Li, Haoyue, He, Sidi, Feng, Ziliang
Format: Journal Article
Language:English
Published: New York Springer US 01.02.2024
Springer Nature B.V
Subjects:
Algorithms
Coding
Color imagery
Computer Communication Networks
Computer Science
Computer vision
Data Structures and Information Theory
Decomposition
Dictionaries
Efficiency
Image reconstruction
Methods
Multimedia
Multimedia Information Systems
Neural networks
Operating costs
Special Purpose and Application-Based Systems
Visual effects
Wavelet transforms
Online convolutional sparse coding
Time-consuming
Multifocus image fusion
CBPDN
GPU
ISSN:1573-7721, 1380-7501, 1573-7721
Online Access:Get full text
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Summary:Efficiently and perfectly eliminate out-of-focus pixels is still a persistent challenge for multi-focus image fusion. Previous approaches tend to focus on high quality fusion results while ignoring running cost. Online Convolutional Sparse Coding (OCSC) is an online version of Convolutional Sparse Coding (CSC) that discards expensive time and space costs associated with batch mode of CSC. In this paper, we use parallel version of OCSC to alleviate time-consuming defects of previous methods. Multi-focus gray and color images, are tested to verify superiority of the proposed method by obtaining excellent visual effects and exciting objective evaluations. The operating cost is roughly reduced by 95% over fusion method using online dictionary learning. A comprehensive analysis of subjectivity, objectivity and time show that our method has characteristics of fast fusion and high reconstruction quality.
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ISSN:1573-7721
1380-7501
1573-7721
DOI:10.1007/s11042-023-15972-z